package cn.it.jobs;

import cn.it.constant.RedisConstant;
import cn.it.utils.QiniuUtils;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.JedisPool;

import java.util.Set;

public class ClearImgJob {

    @Autowired
    private JedisPool jedisPool;

    //根据Redis中保存的两个set集合进行差值计算，获得垃圾图片名称集合
    public void clearImg(){
        Set<String> set =
                jedisPool.getResource().sdiff(RedisConstant.SETMEAL_PIC_RESOURCES, RedisConstant.SETMEAL_PIC_DB_RESOURCES);
        if (set != null) {
            for (String picName : set) {

                //删除七牛云服务器上的图片
                QiniuUtils.deleteFileFromQiniu(picName);

                //从Redis集合中删除图片名称
                jedisPool.getResource().srem(RedisConstant.SETMEAL_PIC_RESOURCES,picName);

            }
        }
        System.out.println("正在清理中~~~~~~~~~");
    }
}
